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|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "sci/resource.h"
#include "sci/engine/features.h"
#include "sci/engine/seg_manager.h"
#include "sci/engine/state.h"
#include "sci/graphics/celobj32.h"
#include "sci/graphics/frameout.h"
#include "sci/graphics/palette32.h"
#include "sci/graphics/remap32.h"
#include "sci/graphics/text32.h"
#include "sci/engine/workarounds.h"
#include "sci/util.h"
namespace Sci {
#pragma mark CelScaler
CelScaler *CelObj::_scaler = nullptr;
void CelScaler::activateScaleTables(const Ratio &scaleX, const Ratio &scaleY) {
for (int i = 0; i < ARRAYSIZE(_scaleTables); ++i) {
if (_scaleTables[i].scaleX == scaleX && _scaleTables[i].scaleY == scaleY) {
_activeIndex = i;
return;
}
}
const int i = 1 - _activeIndex;
_activeIndex = i;
CelScalerTable &table = _scaleTables[i];
if (table.scaleX != scaleX) {
buildLookupTable(table.valuesX, scaleX, kCelScalerTableSize);
table.scaleX = scaleX;
}
if (table.scaleY != scaleY) {
buildLookupTable(table.valuesY, scaleY, kCelScalerTableSize);
table.scaleY = scaleY;
}
}
void CelScaler::buildLookupTable(int *table, const Ratio &ratio, const int size) {
int value = 0;
int remainder = 0;
const int num = ratio.getNumerator();
for (int i = 0; i < size; ++i) {
*table++ = value;
remainder += ratio.getDenominator();
if (remainder >= num) {
value += remainder / num;
remainder %= num;
}
}
}
const CelScalerTable *CelScaler::getScalerTable(const Ratio &scaleX, const Ratio &scaleY) {
activateScaleTables(scaleX, scaleY);
return &_scaleTables[_activeIndex];
}
#pragma mark -
#pragma mark CelObj
bool CelObj::_drawBlackLines = false;
void CelObj::init() {
CelObj::deinit();
_drawBlackLines = false;
_nextCacheId = 1;
_scaler = new CelScaler();
_cache = new CelCache;
_cache->resize(100);
}
void CelObj::deinit() {
delete _scaler;
_scaler = nullptr;
if (_cache != nullptr) {
for (CelCache::iterator it = _cache->begin(); it != _cache->end(); ++it) {
delete it->celObj;
}
}
delete _cache;
_cache = nullptr;
}
#pragma mark -
#pragma mark CelObj - Scalers
template<bool FLIP, typename READER>
struct SCALER_NoScale {
#ifndef NDEBUG
const byte *_rowEdge;
#endif
const byte *_row;
READER _reader;
const int16 _lastIndex;
const int16 _sourceX;
const int16 _sourceY;
SCALER_NoScale(const CelObj &celObj, const int16 maxWidth, const Common::Point &scaledPosition) :
_row(nullptr),
_reader(celObj, FLIP ? celObj._width : maxWidth),
_lastIndex(celObj._width - 1),
_sourceX(scaledPosition.x),
_sourceY(scaledPosition.y) {}
inline void setTarget(const int16 x, const int16 y) {
_row = _reader.getRow(y - _sourceY);
if (FLIP) {
#ifndef NDEBUG
_rowEdge = _row - 1;
#endif
_row += _lastIndex - (x - _sourceX);
assert(_row > _rowEdge);
} else {
#ifndef NDEBUG
_rowEdge = _row + _lastIndex + 1;
#endif
_row += x - _sourceX;
assert(_row < _rowEdge);
}
}
inline byte read() {
assert(_row != _rowEdge);
if (FLIP) {
return *_row--;
} else {
return *_row++;
}
}
};
template<bool FLIP, typename READER>
struct SCALER_Scale {
#ifndef NDEBUG
int16 _minX;
int16 _maxX;
#endif
const byte *_row;
READER _reader;
int16 _x;
static int16 _valuesX[kCelScalerTableSize];
static int16 _valuesY[kCelScalerTableSize];
SCALER_Scale(const CelObj &celObj, const Common::Rect &targetRect, const Common::Point &scaledPosition, const Ratio scaleX, const Ratio scaleY) :
_row(nullptr),
#ifndef NDEBUG
_minX(targetRect.left),
_maxX(targetRect.right - 1),
#endif
// The maximum width of the scaled object may not be as
// wide as the source data it requires if downscaling,
// so just always make the reader decompress an entire
// line of source data when scaling
_reader(celObj, celObj._width) {
#ifndef NDEBUG
assert(_minX <= _maxX);
#endif
// In order for scaling ratios to apply equally across objects that
// start at different positions on the screen (like the cels of a
// picture), the pixels that are read from the source bitmap must all
// use the same pattern of division. In other words, cels must follow
// a global scaling pattern as if they were always drawn starting at an
// even multiple of the scaling ratio, even if they are not.
//
// To get the correct source pixel when reading out through the scaler,
// the engine creates a lookup table for each axis that translates
// directly from target positions to the indexes of source pixels using
// the global cadence for the given scaling ratio.
//
// Note, however, that not all games use the global scaling mode.
//
// SQ6 definitely uses the global scaling mode (an easy visual
// comparison is to leave Implants N' Stuff and then look at Roger);
// Torin definitely does not (scaling subtitle backgrounds will cause it
// to attempt a read out of bounds and crash). They are both SCI
// "2.1mid" games, so currently the common denominator looks to be that
// games which use global scaling are the ones that use low-resolution
// script coordinates too.
const CelScalerTable *table = CelObj::_scaler->getScalerTable(scaleX, scaleY);
if (g_sci->_gfxFrameout->getCurrentBuffer().scriptWidth == kLowResX) {
const int16 unscaledX = (scaledPosition.x / scaleX).toInt();
if (FLIP) {
const int lastIndex = celObj._width - 1;
for (int16 x = targetRect.left; x < targetRect.right; ++x) {
_valuesX[x] = lastIndex - (table->valuesX[x] - unscaledX);
}
} else {
for (int16 x = targetRect.left; x < targetRect.right; ++x) {
_valuesX[x] = table->valuesX[x] - unscaledX;
}
}
const int16 unscaledY = (scaledPosition.y / scaleY).toInt();
for (int16 y = targetRect.top; y < targetRect.bottom; ++y) {
_valuesY[y] = table->valuesY[y] - unscaledY;
}
} else {
if (FLIP) {
const int lastIndex = celObj._width - 1;
for (int16 x = targetRect.left; x < targetRect.right; ++x) {
_valuesX[x] = lastIndex - table->valuesX[x - scaledPosition.x];
}
} else {
for (int16 x = targetRect.left; x < targetRect.right; ++x) {
_valuesX[x] = table->valuesX[x - scaledPosition.x];
}
}
for (int16 y = targetRect.top; y < targetRect.bottom; ++y) {
_valuesY[y] = table->valuesY[y - scaledPosition.y];
}
}
}
inline void setTarget(const int16 x, const int16 y) {
_row = _reader.getRow(_valuesY[y]);
_x = x;
assert(_x >= _minX && _x <= _maxX);
}
inline byte read() {
assert(_x >= _minX && _x <= _maxX);
return _row[_valuesX[_x++]];
}
};
template<bool FLIP, typename READER>
int16 SCALER_Scale<FLIP, READER>::_valuesX[kCelScalerTableSize];
template<bool FLIP, typename READER>
int16 SCALER_Scale<FLIP, READER>::_valuesY[kCelScalerTableSize];
#pragma mark -
#pragma mark CelObj - Resource readers
struct READER_Uncompressed {
private:
#ifndef NDEBUG
int16 _sourceHeight;
#endif
const byte *_pixels;
const int16 _sourceWidth;
public:
READER_Uncompressed(const CelObj &celObj, const int16) :
#ifndef NDEBUG
_sourceHeight(celObj._height),
#endif
_sourceWidth(celObj._width) {
const SciSpan<const byte> resource = celObj.getResPointer();
const uint32 pixelsOffset = resource.getUint32SEAt(celObj._celHeaderOffset + 24);
const int32 numPixels = MIN<int32>(resource.size() - pixelsOffset, celObj._width * celObj._height);
if (numPixels < celObj._width * celObj._height) {
warning("%s is truncated", celObj._info.toString().c_str());
#ifndef NDEBUG
_sourceHeight = numPixels / celObj._width;
#endif
}
_pixels = resource.getUnsafeDataAt(pixelsOffset, numPixels);
}
inline const byte *getRow(const int16 y) const {
assert(y >= 0 && y < _sourceHeight);
return _pixels + y * _sourceWidth;
}
};
struct READER_Compressed {
private:
const SciSpan<const byte> _resource;
byte _buffer[kCelScalerTableSize];
uint32 _controlOffset;
uint32 _dataOffset;
uint32 _uncompressedDataOffset;
int16 _y;
const int16 _sourceHeight;
const uint8 _skipColor;
const int16 _maxWidth;
public:
READER_Compressed(const CelObj &celObj, const int16 maxWidth) :
_resource(celObj.getResPointer()),
_y(-1),
_sourceHeight(celObj._height),
_skipColor(celObj._skipColor),
_maxWidth(maxWidth) {
assert(maxWidth <= celObj._width);
const SciSpan<const byte> celHeader = _resource.subspan(celObj._celHeaderOffset);
_dataOffset = celHeader.getUint32SEAt(24);
_uncompressedDataOffset = celHeader.getUint32SEAt(28);
_controlOffset = celHeader.getUint32SEAt(32);
}
inline const byte *getRow(const int16 y) {
assert(y >= 0 && y < _sourceHeight);
if (y != _y) {
// compressed data segment for row
const uint32 rowOffset = _resource.getUint32SEAt(_controlOffset + y * sizeof(uint32));
uint32 rowCompressedSize;
if (y + 1 < _sourceHeight) {
rowCompressedSize = _resource.getUint32SEAt(_controlOffset + (y + 1) * sizeof(uint32)) - rowOffset;
} else {
rowCompressedSize = _resource.size() - rowOffset - _dataOffset;
}
const byte *row = _resource.getUnsafeDataAt(_dataOffset + rowOffset, rowCompressedSize);
// uncompressed data segment for row
const uint32 literalOffset = _resource.getUint32SEAt(_controlOffset + _sourceHeight * sizeof(uint32) + y * sizeof(uint32));
uint32 literalRowSize;
if (y + 1 < _sourceHeight) {
literalRowSize = _resource.getUint32SEAt(_controlOffset + _sourceHeight * sizeof(uint32) + (y + 1) * sizeof(uint32)) - literalOffset;
} else {
literalRowSize = _resource.size() - literalOffset - _uncompressedDataOffset;
}
const byte *literal = _resource.getUnsafeDataAt(_uncompressedDataOffset + literalOffset, literalRowSize);
uint8 length;
for (int16 i = 0; i < _maxWidth; i += length) {
const byte controlByte = *row++;
length = controlByte;
// Run-length encoded
if (controlByte & 0x80) {
length &= 0x3F;
assert(i + length < (int)sizeof(_buffer));
// Fill with skip color
if (controlByte & 0x40) {
memset(_buffer + i, _skipColor, length);
// Next value is fill color
} else {
memset(_buffer + i, *literal, length);
++literal;
}
// Uncompressed
} else {
assert(i + length < (int)sizeof(_buffer));
memcpy(_buffer + i, literal, length);
literal += length;
}
}
_y = y;
}
return _buffer;
}
};
#pragma mark -
#pragma mark CelObj - Remappers
/**
* Pixel mapper for a CelObj with transparent pixels and no
* remapping data.
*/
struct MAPPER_NoMD {
inline void draw(byte *target, const byte pixel, const uint8 skipColor) const {
if (pixel != skipColor) {
*target = pixel;
}
}
};
/**
* Pixel mapper for a CelObj with no transparent pixels and
* no remapping data.
*/
struct MAPPER_NoMDNoSkip {
inline void draw(byte *target, const byte pixel, const uint8) const {
*target = pixel;
}
};
/**
* Pixel mapper for a CelObj with transparent pixels,
* remapping data, and remapping enabled.
*/
struct MAPPER_Map {
inline void draw(byte *target, const byte pixel, const uint8 skipColor) const {
if (pixel != skipColor) {
// NOTE: For some reason, SSCI never checks if the source
// pixel is *above* the range of remaps.
if (pixel < g_sci->_gfxRemap32->getStartColor()) {
*target = pixel;
} else if (g_sci->_gfxRemap32->remapEnabled(pixel)) {
*target = g_sci->_gfxRemap32->remapColor(pixel, *target);
}
}
}
};
/**
* Pixel mapper for a CelObj with transparent pixels,
* remapping data, and remapping disabled.
*/
struct MAPPER_NoMap {
inline void draw(byte *target, const byte pixel, const uint8 skipColor) const {
// NOTE: For some reason, SSCI never checks if the source
// pixel is *above* the range of remaps.
if (pixel != skipColor && pixel < g_sci->_gfxRemap32->getStartColor()) {
*target = pixel;
}
}
};
void CelObj::draw(Buffer &target, const ScreenItem &screenItem, const Common::Rect &targetRect) const {
const Common::Point &scaledPosition = screenItem._scaledPosition;
const Ratio &scaleX = screenItem._ratioX;
const Ratio &scaleY = screenItem._ratioY;
_drawBlackLines = screenItem._drawBlackLines;
if (_remap) {
// NOTE: In the original code this check was `g_Remap_numActiveRemaps && _remap`,
// but since we are already in a `_remap` branch, there is no reason to check it
// again
if (g_sci->_gfxRemap32->getRemapCount()) {
if (scaleX.isOne() && scaleY.isOne()) {
if (_compressionType == kCelCompressionNone) {
if (_drawMirrored) {
drawUncompHzFlipMap(target, targetRect, scaledPosition);
} else {
drawUncompNoFlipMap(target, targetRect, scaledPosition);
}
} else {
if (_drawMirrored) {
drawHzFlipMap(target, targetRect, scaledPosition);
} else {
drawNoFlipMap(target, targetRect, scaledPosition);
}
}
} else {
if (_compressionType == kCelCompressionNone) {
scaleDrawUncompMap(target, scaleX, scaleY, targetRect, scaledPosition);
} else {
scaleDrawMap(target, scaleX, scaleY, targetRect, scaledPosition);
}
}
} else {
if (scaleX.isOne() && scaleY.isOne()) {
if (_compressionType == kCelCompressionNone) {
if (_drawMirrored) {
drawUncompHzFlip(target, targetRect, scaledPosition);
} else {
drawUncompNoFlip(target, targetRect, scaledPosition);
}
} else {
if (_drawMirrored) {
drawHzFlip(target, targetRect, scaledPosition);
} else {
drawNoFlip(target, targetRect, scaledPosition);
}
}
} else {
if (_compressionType == kCelCompressionNone) {
scaleDrawUncomp(target, scaleX, scaleY, targetRect, scaledPosition);
} else {
scaleDraw(target, scaleX, scaleY, targetRect, scaledPosition);
}
}
}
} else {
if (scaleX.isOne() && scaleY.isOne()) {
if (_compressionType == kCelCompressionNone) {
if (_transparent) {
if (_drawMirrored) {
drawUncompHzFlipNoMD(target, targetRect, scaledPosition);
} else {
drawUncompNoFlipNoMD(target, targetRect, scaledPosition);
}
} else {
if (_drawMirrored) {
drawUncompHzFlipNoMDNoSkip(target, targetRect, scaledPosition);
} else {
drawUncompNoFlipNoMDNoSkip(target, targetRect, scaledPosition);
}
}
} else {
if (_drawMirrored) {
drawHzFlipNoMD(target, targetRect, scaledPosition);
} else {
drawNoFlipNoMD(target, targetRect, scaledPosition);
}
}
} else {
if (_compressionType == kCelCompressionNone) {
scaleDrawUncompNoMD(target, scaleX, scaleY, targetRect, scaledPosition);
} else {
scaleDrawNoMD(target, scaleX, scaleY, targetRect, scaledPosition);
}
}
}
_drawBlackLines = false;
}
void CelObj::draw(Buffer &target, const ScreenItem &screenItem, const Common::Rect &targetRect, bool mirrorX) {
_drawMirrored = mirrorX;
draw(target, screenItem, targetRect);
}
void CelObj::draw(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition, const bool mirrorX) {
_drawMirrored = mirrorX;
Ratio square;
drawTo(target, targetRect, scaledPosition, square, square);
}
void CelObj::drawTo(Buffer &target, Common::Rect const &targetRect, Common::Point const &scaledPosition, Ratio const &scaleX, Ratio const &scaleY) const {
if (_remap) {
if (scaleX.isOne() && scaleY.isOne()) {
if (_compressionType == kCelCompressionNone) {
if (_drawMirrored) {
drawUncompHzFlipMap(target, targetRect, scaledPosition);
} else {
drawUncompNoFlipMap(target, targetRect, scaledPosition);
}
} else {
if (_drawMirrored) {
drawHzFlipMap(target, targetRect, scaledPosition);
} else {
drawNoFlipMap(target, targetRect, scaledPosition);
}
}
} else {
if (_compressionType == kCelCompressionNone) {
scaleDrawUncompMap(target, scaleX, scaleY, targetRect, scaledPosition);
} else {
scaleDrawMap(target, scaleX, scaleY, targetRect, scaledPosition);
}
}
} else {
if (scaleX.isOne() && scaleY.isOne()) {
if (_compressionType == kCelCompressionNone) {
if (_drawMirrored) {
drawUncompHzFlipNoMD(target, targetRect, scaledPosition);
} else {
drawUncompNoFlipNoMD(target, targetRect, scaledPosition);
}
} else {
if (_drawMirrored) {
drawHzFlipNoMD(target, targetRect, scaledPosition);
} else {
drawNoFlipNoMD(target, targetRect, scaledPosition);
}
}
} else {
if (_compressionType == kCelCompressionNone) {
scaleDrawUncompNoMD(target, scaleX, scaleY, targetRect, scaledPosition);
} else {
scaleDrawNoMD(target, scaleX, scaleY, targetRect, scaledPosition);
}
}
}
}
uint8 CelObj::readPixel(uint16 x, const uint16 y, bool mirrorX) const {
if (mirrorX) {
x = _width - x - 1;
}
if (_compressionType == kCelCompressionNone) {
READER_Uncompressed reader(*this, x + 1);
return reader.getRow(y)[x];
} else {
READER_Compressed reader(*this, x + 1);
return reader.getRow(y)[x];
}
}
void CelObj::submitPalette() const {
if (_hunkPaletteOffset) {
const SciSpan<const byte> data = getResPointer();
const HunkPalette palette(data.subspan(_hunkPaletteOffset));
g_sci->_gfxPalette32->submit(palette);
}
}
#pragma mark -
#pragma mark CelObj - Caching
int CelObj::_nextCacheId = 1;
CelCache *CelObj::_cache = nullptr;
int CelObj::searchCache(const CelInfo32 &celInfo, int *const nextInsertIndex) const {
*nextInsertIndex = -1;
int oldestId = _nextCacheId + 1;
int oldestIndex = 0;
for (int i = 0, len = _cache->size(); i < len; ++i) {
CelCacheEntry &entry = (*_cache)[i];
if (entry.celObj == nullptr) {
if (*nextInsertIndex == -1) {
*nextInsertIndex = i;
}
} else if (entry.celObj->_info == celInfo) {
entry.id = ++_nextCacheId;
return i;
} else if (oldestId > entry.id) {
oldestId = entry.id;
oldestIndex = i;
}
}
if (*nextInsertIndex == -1) {
*nextInsertIndex = oldestIndex;
}
return -1;
}
void CelObj::putCopyInCache(const int cacheIndex) const {
if (cacheIndex == -1) {
error("Invalid cache index");
}
CelCacheEntry &entry = (*_cache)[cacheIndex];
if (entry.celObj != nullptr) {
delete entry.celObj;
}
entry.celObj = duplicate();
entry.id = ++_nextCacheId;
}
#pragma mark -
#pragma mark CelObj - Drawing
template<typename MAPPER, typename SCALER, bool DRAW_BLACK_LINES>
struct RENDERER {
MAPPER &_mapper;
SCALER &_scaler;
const uint8 _skipColor;
RENDERER(MAPPER &mapper, SCALER &scaler, const uint8 skipColor) :
_mapper(mapper),
_scaler(scaler),
_skipColor(skipColor) {}
inline void draw(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
byte *targetPixel = (byte *)target.getPixels() + target.screenWidth * targetRect.top + targetRect.left;
const int16 skipStride = target.screenWidth - targetRect.width();
const int16 targetWidth = targetRect.width();
const int16 targetHeight = targetRect.height();
for (int16 y = 0; y < targetHeight; ++y) {
if (DRAW_BLACK_LINES && (y % 2) == 0) {
memset(targetPixel, 0, targetWidth);
targetPixel += targetWidth + skipStride;
continue;
}
_scaler.setTarget(targetRect.left, targetRect.top + y);
for (int16 x = 0; x < targetWidth; ++x) {
_mapper.draw(targetPixel++, _scaler.read(), _skipColor);
}
targetPixel += skipStride;
}
}
};
template<typename MAPPER, typename SCALER>
void CelObj::render(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
MAPPER mapper;
SCALER scaler(*this, targetRect.left - scaledPosition.x + targetRect.width(), scaledPosition);
RENDERER<MAPPER, SCALER, false> renderer(mapper, scaler, _skipColor);
renderer.draw(target, targetRect, scaledPosition);
}
template<typename MAPPER, typename SCALER>
void CelObj::render(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition, const Ratio &scaleX, const Ratio &scaleY) const {
MAPPER mapper;
SCALER scaler(*this, targetRect, scaledPosition, scaleX, scaleY);
if (_drawBlackLines) {
RENDERER<MAPPER, SCALER, true> renderer(mapper, scaler, _skipColor);
renderer.draw(target, targetRect, scaledPosition);
} else {
RENDERER<MAPPER, SCALER, false> renderer(mapper, scaler, _skipColor);
renderer.draw(target, targetRect, scaledPosition);
}
}
void CelObj::drawHzFlip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMap, SCALER_NoScale<true, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawNoFlip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMap, SCALER_NoScale<false, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompNoFlip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMap, SCALER_NoScale<false, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompHzFlip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMap, SCALER_NoScale<true, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::scaleDraw(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
if (_drawMirrored) {
render<MAPPER_NoMap, SCALER_Scale<true, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
} else {
render<MAPPER_NoMap, SCALER_Scale<false, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
}
void CelObj::scaleDrawUncomp(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
if (_drawMirrored) {
render<MAPPER_NoMap, SCALER_Scale<true, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
} else {
render<MAPPER_NoMap, SCALER_Scale<false, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
}
void CelObj::drawHzFlipMap(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_Map, SCALER_NoScale<true, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawNoFlipMap(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_Map, SCALER_NoScale<false, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompNoFlipMap(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_Map, SCALER_NoScale<false, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompHzFlipMap(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_Map, SCALER_NoScale<true, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::scaleDrawMap(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
if (_drawMirrored) {
render<MAPPER_Map, SCALER_Scale<true, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
} else {
render<MAPPER_Map, SCALER_Scale<false, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
}
void CelObj::scaleDrawUncompMap(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
if (_drawMirrored) {
render<MAPPER_Map, SCALER_Scale<true, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
} else {
render<MAPPER_Map, SCALER_Scale<false, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
}
void CelObj::drawNoFlipNoMD(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMD, SCALER_NoScale<false, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawHzFlipNoMD(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMD, SCALER_NoScale<true, READER_Compressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompNoFlipNoMD(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMD, SCALER_NoScale<false, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompNoFlipNoMDNoSkip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMDNoSkip, SCALER_NoScale<false, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompHzFlipNoMD(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMD, SCALER_NoScale<true, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::drawUncompHzFlipNoMDNoSkip(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
render<MAPPER_NoMDNoSkip, SCALER_NoScale<true, READER_Uncompressed> >(target, targetRect, scaledPosition);
}
void CelObj::scaleDrawNoMD(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
// In SSCI the checks are > because their rects are BR-inclusive;
// our checks are >= because our rects are BR-exclusive
if (g_sci->_features->hasEmptyScaleDrawHack() &&
(targetRect.left >= targetRect.right ||
targetRect.top >= targetRect.bottom)) {
return;
}
if (_drawMirrored)
render<MAPPER_NoMD, SCALER_Scale<true, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
else
render<MAPPER_NoMD, SCALER_Scale<false, READER_Compressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
void CelObj::scaleDrawUncompNoMD(Buffer &target, const Ratio &scaleX, const Ratio &scaleY, const Common::Rect &targetRect, const Common::Point &scaledPosition) const {
// In SSCI the checks are > because their rects are BR-inclusive;
// our checks are >= because our rects are BR-exclusive
if (g_sci->_features->hasEmptyScaleDrawHack() &&
(targetRect.left >= targetRect.right ||
targetRect.top >= targetRect.bottom)) {
return;
}
if (_drawMirrored) {
render<MAPPER_NoMD, SCALER_Scale<true, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
} else {
render<MAPPER_NoMD, SCALER_Scale<false, READER_Uncompressed> >(target, targetRect, scaledPosition, scaleX, scaleY);
}
}
#pragma mark -
#pragma mark CelObjView
int16 CelObjView::getNumLoops(const GuiResourceId viewId) {
const Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypeView, viewId), false);
if (!resource) {
return 0;
}
return resource->getUint8At(2);
}
int16 CelObjView::getNumCels(const GuiResourceId viewId, int16 loopNo) {
const Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypeView, viewId), false);
if (!resource) {
return 0;
}
const SciSpan<const byte> &data = *resource;
const uint16 loopCount = data[2];
// Every version of SCI32 has a logic error in this function that causes
// random memory to be read if a script requests the cel count for one
// past the maximum loop index. For example, GK1 room 808 does this, and
// gets stuck in an infinite loop because the game script expects this
// method to return a non-zero value.
// This bug is triggered in basically every SCI32 game and appears to be
// universally fixable simply by always using the next lowest loop instead.
if (loopNo == loopCount) {
const SciCallOrigin origin = g_sci->getEngineState()->getCurrentCallOrigin();
debugC(kDebugLevelWorkarounds, "Workaround: kNumCels loop %d -> loop %d in view %u, %s", loopNo, loopNo - 1, viewId, origin.toString().c_str());
--loopNo;
}
if (loopNo > loopCount || loopNo < 0) {
return 0;
}
const uint16 viewHeaderSize = data.getUint16SEAt(0);
const uint8 loopHeaderSize = data[12];
const uint8 viewHeaderFieldSize = 2;
SciSpan<const byte> loopHeader = data.subspan(viewHeaderFieldSize + viewHeaderSize + (loopHeaderSize * loopNo));
if (loopHeader.getInt8At(0) != -1) {
loopHeader = data.subspan(viewHeaderFieldSize + viewHeaderSize + (loopHeaderSize * loopHeader.getInt8At(0)));
}
return loopHeader[2];
}
CelObjView::CelObjView(const GuiResourceId viewId, const int16 loopNo, const int16 celNo) {
_info.type = kCelTypeView;
_info.resourceId = viewId;
_info.loopNo = loopNo;
_info.celNo = celNo;
_mirrorX = false;
_compressionType = kCelCompressionInvalid;
_transparent = true;
int cacheInsertIndex;
const int cacheIndex = searchCache(_info, &cacheInsertIndex);
if (cacheIndex != -1) {
CelCacheEntry &entry = (*_cache)[cacheIndex];
const CelObjView *const cachedCelObj = dynamic_cast<CelObjView *>(entry.celObj);
if (cachedCelObj == nullptr) {
error("Expected a CelObjView in cache slot %d", cacheIndex);
}
*this = *cachedCelObj;
entry.id = ++_nextCacheId;
return;
}
const Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypeView, viewId), false);
// NOTE: SCI2.1/SQ6 just silently returns here.
if (!resource) {
error("View resource %d not found", viewId);
}
const Resource &data = *resource;
_xResolution = data.getUint16SEAt(14);
_yResolution = data.getUint16SEAt(16);
if (_xResolution == 0 && _yResolution == 0) {
byte sizeFlag = data[5];
if (sizeFlag == 0) {
_xResolution = kLowResX;
_yResolution = kLowResY;
} else if (sizeFlag == 1) {
_xResolution = 640;
_yResolution = 480;
} else if (sizeFlag == 2) {
_xResolution = 640;
_yResolution = 400;
}
}
const uint16 loopCount = data[2];
if (_info.loopNo >= loopCount) {
_info.loopNo = loopCount - 1;
}
// NOTE: This is the actual check, in the actual location,
// from SCI engine.
if (loopNo < 0) {
error("Loop is less than 0");
}
const uint16 viewHeaderSize = data.getUint16SEAt(0);
const uint8 loopHeaderSize = data[12];
const uint8 viewHeaderFieldSize = 2;
SciSpan<const byte> loopHeader = data.subspan(viewHeaderFieldSize + viewHeaderSize + (loopHeaderSize * _info.loopNo));
if (loopHeader.getInt8At(0) != -1) {
if (loopHeader[1] == 1) {
_mirrorX = true;
}
loopHeader = data.subspan(viewHeaderFieldSize + viewHeaderSize + (loopHeaderSize * loopHeader.getInt8At(0)));
}
uint8 celCount = loopHeader[2];
if (_info.celNo >= celCount) {
_info.celNo = celCount - 1;
}
// A celNo can be negative and still valid. At least PQ4CD uses this strange
// arrangement to load its high-resolution main menu resource. In PQ4CD, the
// low-resolution menu is at view 23, loop 9, cel 0, and the high-resolution
// menu is at view 2300, loop 0, cel 0. View 2300 is specially crafted to
// have 2 loops, with the second loop having 0 cels. When in high-resolution
// mode, the game scripts only change the view resource ID from 23 to 2300,
// leaving loop 9 and cel 0 the same. The code in CelObjView constructor
// auto-corrects loop 9 to loop 1, and then auto-corrects the cel number
// from 0 to -1, which effectively causes loop 0, cel 0 to be read.
if (_info.celNo < 0 && _info.loopNo == 0) {
error("Cel is less than 0 on loop 0");
}
// HACK: Phantasmagoria view 64001 contains a bad palette that overwrites
// parts of the palette used by the background picture in room 6400, causing
// the black shadows to become tan, and many of the other background colors
// to end up a little bit off. View 64001 renders fine using the existing
// palette created by the background image, so here we just ignore the
// embedded palette entirely.
if (g_sci->getGameId() == GID_PHANTASMAGORIA &&
_info.type == kCelTypeView && _info.resourceId == 64001) {
_hunkPaletteOffset = 0;
} else {
_hunkPaletteOffset = data.getUint32SEAt(8);
}
_celHeaderOffset = loopHeader.getUint32SEAt(12) + (data[13] * _info.celNo);
const SciSpan<const byte> celHeader = data.subspan(_celHeaderOffset);
_width = celHeader.getUint16SEAt(0);
_height = celHeader.getUint16SEAt(2);
assert(_width <= kCelScalerTableSize && _height <= kCelScalerTableSize);
_origin.x = _width / 2 - celHeader.getInt16SEAt(4);
if (g_sci->_features->usesAlternateSelectors() && _mirrorX) {
_origin.x = _width - _origin.x - 1;
}
_origin.y = _height - celHeader.getInt16SEAt(6) - 1;
_skipColor = celHeader[8];
_compressionType = (CelCompressionType)celHeader[9];
if (_compressionType != kCelCompressionNone && _compressionType != kCelCompressionRLE) {
error("Compression type not supported - V: %d L: %d C: %d", _info.resourceId, _info.loopNo, _info.celNo);
}
if (celHeader[10] & 128) {
// NOTE: This is correct according to SCI2.1/SQ6/DOS;
// the engine re-reads the byte value as a word value
const uint16 flags = celHeader.getUint16SEAt(10);
_transparent = flags & 1 ? true : false;
_remap = flags & 2 ? true : false;
} else if (_compressionType == kCelCompressionNone) {
_remap = analyzeUncompressedForRemap();
} else {
_remap = analyzeForRemap();
}
putCopyInCache(cacheInsertIndex);
}
bool CelObjView::analyzeUncompressedForRemap() const {
const SciSpan<const byte> data = getResPointer();
const uint32 pixelsOffset = data.getUint32SEAt(_celHeaderOffset + 24);
const byte *pixels = data.getUnsafeDataAt(pixelsOffset, _width * _height);
for (int i = 0; i < _width * _height; ++i) {
const byte pixel = pixels[i];
if (
pixel >= g_sci->_gfxRemap32->getStartColor() &&
pixel <= g_sci->_gfxRemap32->getEndColor() &&
pixel != _skipColor
) {
return true;
}
}
return false;
}
bool CelObjView::analyzeForRemap() const {
READER_Compressed reader(*this, _width);
for (int y = 0; y < _height; y++) {
const byte *const curRow = reader.getRow(y);
for (int x = 0; x < _width; x++) {
const byte pixel = curRow[x];
if (
pixel >= g_sci->_gfxRemap32->getStartColor() &&
pixel <= g_sci->_gfxRemap32->getEndColor() &&
pixel != _skipColor
) {
return true;
}
}
}
return false;
}
void CelObjView::draw(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition, bool mirrorX, const Ratio &scaleX, const Ratio &scaleY) {
_drawMirrored = mirrorX;
drawTo(target, targetRect, scaledPosition, scaleX, scaleY);
}
CelObjView *CelObjView::duplicate() const {
return new CelObjView(*this);
}
const SciSpan<const byte> CelObjView::getResPointer() const {
Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypeView, _info.resourceId), false);
if (resource == nullptr) {
error("Failed to load view %d from resource manager", _info.resourceId);
}
return *resource;
}
Common::Point CelObjView::getLinkPosition(const int16 linkId) const {
const SciSpan<const byte> resource = getResPointer();
if (resource[18] < 0x84) {
error("%s unsupported version %u for Links", _info.toString().c_str(), resource[18]);
}
const SciSpan<const byte> celHeader = resource.subspan(_celHeaderOffset);
const int16 numLinks = celHeader.getInt16SEAt(40);
if (numLinks) {
const int recordSize = 6;
SciSpan<const byte> linkTable = resource.subspan(celHeader.getInt32SEAt(36), recordSize * numLinks);
for (int16 i = 0; i < numLinks; ++i) {
if (linkTable[4] == linkId) {
Common::Point point;
point.x = linkTable.getInt16SEAt(0);
if (_mirrorX) {
// NOTE: SSCI had an off-by-one error here (missing -1)
point.x = _width - point.x - 1;
}
point.y = linkTable.getInt16SEAt(2);
return point;
}
linkTable += recordSize;
}
}
return Common::Point(-1, -1);
}
#pragma mark -
#pragma mark CelObjPic
CelObjPic::CelObjPic(const GuiResourceId picId, const int16 celNo) {
_info.type = kCelTypePic;
_info.resourceId = picId;
_info.loopNo = 0;
_info.celNo = celNo;
_mirrorX = false;
_compressionType = kCelCompressionInvalid;
_transparent = true;
_remap = false;
int cacheInsertIndex;
const int cacheIndex = searchCache(_info, &cacheInsertIndex);
if (cacheIndex != -1) {
CelCacheEntry &entry = (*_cache)[cacheIndex];
const CelObjPic *const cachedCelObj = dynamic_cast<CelObjPic *>(entry.celObj);
if (cachedCelObj == nullptr) {
error("Expected a CelObjPic in cache slot %d", cacheIndex);
}
*this = *cachedCelObj;
entry.id = ++_nextCacheId;
return;
}
const Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypePic, picId), false);
// NOTE: SCI2.1/SQ6 just silently returns here.
if (!resource) {
error("Pic resource %d not found", picId);
}
const Resource &data = *resource;
_celCount = data.getUint8At(2);
if (_info.celNo >= _celCount) {
error("Cel number %d greater than cel count %d", _info.celNo, _celCount);
}
_celHeaderOffset = data.getUint16SEAt(0) + (data.getUint16SEAt(4) * _info.celNo);
_hunkPaletteOffset = data.getUint32SEAt(6);
const SciSpan<const byte> celHeader = data.subspan(_celHeaderOffset);
_width = celHeader.getUint16SEAt(0);
_height = celHeader.getUint16SEAt(2);
_origin.x = celHeader.getInt16SEAt(4);
_origin.y = celHeader.getInt16SEAt(6);
_skipColor = celHeader[8];
_compressionType = (CelCompressionType)celHeader[9];
_priority = celHeader.getInt16SEAt(36);
_relativePosition.x = celHeader.getInt16SEAt(38);
_relativePosition.y = celHeader.getInt16SEAt(40);
const uint16 sizeFlag1 = data.getUint16SEAt(10);
const uint16 sizeFlag2 = data.getUint16SEAt(12);
if (sizeFlag2) {
_xResolution = sizeFlag1;
_yResolution = sizeFlag2;
} else if (sizeFlag1 == 0) {
_xResolution = kLowResX;
_yResolution = kLowResY;
} else if (sizeFlag1 == 1) {
_xResolution = 640;
_yResolution = 480;
} else if (sizeFlag1 == 2) {
_xResolution = 640;
_yResolution = 400;
}
if (celHeader.getUint8At(10) & 128) {
// NOTE: This is correct according to SCI2.1/SQ6/DOS;
// the engine re-reads the byte value as a word value
const uint16 flags = celHeader.getUint16SEAt(10);
_transparent = flags & 1 ? true : false;
_remap = flags & 2 ? true : false;
} else {
_transparent = _compressionType != kCelCompressionNone ? true : analyzeUncompressedForSkip();
if (_compressionType != kCelCompressionNone && _compressionType != kCelCompressionRLE) {
error("Compression type not supported - P: %d C: %d", picId, celNo);
}
}
putCopyInCache(cacheInsertIndex);
}
bool CelObjPic::analyzeUncompressedForSkip() const {
const SciSpan<const byte> resource = getResPointer();
const uint32 pixelsOffset = resource.getUint32SEAt(_celHeaderOffset + 24);
const int32 numPixels = MIN<int32>(resource.size() - pixelsOffset, _width * _height);
if (numPixels < _width * _height) {
warning("%s is truncated", _info.toString().c_str());
}
const byte *const pixels = resource.getUnsafeDataAt(pixelsOffset, numPixels);
for (int32 i = 0; i < numPixels; ++i) {
uint8 pixel = pixels[i];
if (pixel == _skipColor) {
return true;
}
}
return false;
}
void CelObjPic::draw(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition, const bool mirrorX) {
const Ratio square;
_drawMirrored = mirrorX;
drawTo(target, targetRect, scaledPosition, square, square);
}
CelObjPic *CelObjPic::duplicate() const {
return new CelObjPic(*this);
}
const SciSpan<const byte> CelObjPic::getResPointer() const {
const Resource *const resource = g_sci->getResMan()->findResource(ResourceId(kResourceTypePic, _info.resourceId), false);
if (resource == nullptr) {
error("Failed to load pic %d from resource manager", _info.resourceId);
}
return *resource;
}
#pragma mark -
#pragma mark CelObjMem
CelObjMem::CelObjMem(const reg_t bitmapObject) {
_info.type = kCelTypeMem;
_info.bitmap = bitmapObject;
_mirrorX = false;
_compressionType = kCelCompressionNone;
_celHeaderOffset = 0;
_transparent = true;
SciBitmap *bitmap = g_sci->getEngineState()->_segMan->lookupBitmap(bitmapObject);
// NOTE: SSCI did no error checking here at all.
if (!bitmap) {
error("Bitmap %04x:%04x not found", PRINT_REG(bitmapObject));
}
_width = bitmap->getWidth();
_height = bitmap->getHeight();
_origin = bitmap->getOrigin();
_skipColor = bitmap->getSkipColor();
_xResolution = bitmap->getXResolution();
_yResolution = bitmap->getYResolution();
_hunkPaletteOffset = bitmap->getHunkPaletteOffset();
_remap = bitmap->getRemap();
}
CelObjMem *CelObjMem::duplicate() const {
return new CelObjMem(*this);
}
const SciSpan<const byte> CelObjMem::getResPointer() const {
SciBitmap &bitmap = *g_sci->getEngineState()->_segMan->lookupBitmap(_info.bitmap);
return SciSpan<const byte>(bitmap.getRawData(), bitmap.getRawSize(), Common::String::format("bitmap %04x:%04x", PRINT_REG(_info.bitmap)));
}
#pragma mark -
#pragma mark CelObjColor
CelObjColor::CelObjColor(const uint8 color, const int16 width, const int16 height) {
_info.type = kCelTypeColor;
_info.color = color;
_origin.x = 0;
_origin.y = 0;
_xResolution = g_sci->_gfxFrameout->getCurrentBuffer().scriptWidth;
_yResolution = g_sci->_gfxFrameout->getCurrentBuffer().scriptHeight;
_hunkPaletteOffset = 0;
_mirrorX = false;
_remap = false;
_width = width;
_height = height;
}
void CelObjColor::draw(Buffer &target, const ScreenItem &screenItem, const Common::Rect &targetRect, const bool mirrorX) {
// TODO: The original engine sets this flag but why? One cannot
// draw a solid color mirrored.
_drawMirrored = mirrorX;
draw(target, targetRect);
}
void CelObjColor::draw(Buffer &target, const Common::Rect &targetRect, const Common::Point &scaledPosition, bool mirrorX) {
error("Unsupported method");
}
void CelObjColor::draw(Buffer &target, const Common::Rect &targetRect) const {
target.fillRect(targetRect, _info.color);
}
CelObjColor *CelObjColor::duplicate() const {
return new CelObjColor(*this);
}
const SciSpan<const byte> CelObjColor::getResPointer() const {
error("Unsupported method");
}
} // End of namespace Sci
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